{"id":3500,"date":"2026-07-04T09:00:00","date_gmt":"2026-07-04T01:00:00","guid":{"rendered":"https:\/\/eqsvq3fzct.wpdns.site\/blog\/auxiliary-contacts-for-mccbs-functions-and-standards\/"},"modified":"2026-10-20T10:48:47","modified_gmt":"2026-10-20T02:48:47","slug":"mccb-%ea%b8%b0%eb%8a%a5-%eb%b0%8f-%ed%91%9c%ec%a4%80%ec%97%90-%eb%8c%80%ed%95%9c-%eb%b3%b4%ec%a1%b0-%ec%a0%91%ec%a0%90","status":"publish","type":"post","link":"https:\/\/w9-group.com\/ko\/blog\/auxiliary-contacts-for-mccbs-functions-and-standards\/","title":{"rendered":"MCCB\uc758 \ubcf4\uc870 \uc811\uc810\uc740 \ubb34\uc5c7\uc778\uac00? \uae30\ub2a5 \ubc0f \ud45c\uc900"},"content":{"rendered":"<div data-content-revision=\"topic-research-geo information-gain\" data-revision-date=\"2026-10-15\">\n<p>MCCB\ub294 \uc81c\uc5b4 \ud654\uba74\uc5d0\uc11c \ud53c\ub354\uac00 \uc5ec\uc804\ud788 \uc0ac\uc6a9 \uac00\ub2a5 \uc0c1\ud0dc\ub85c \ud45c\uc2dc\ub418\ub294 \ub3d9\uc548\uc5d0\ub3c4 \uac1c\ubc29 \uc0c1\ud0dc\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub514\uc790\uc778\uc0c1\uc758 \ubb38\uc81c\ub294 \ud654\uba74\uc774 \uc704\uce58 \ud53c\ub4dc\ubc31, \ud2b8\ub9bd \uc54c\ub78c \ub610\ub294 \uc544\uc9c1 \uac80\uc99d\ub418\uc9c0 \uc54a\uc740 \uba85\ub839 \uc5d0\ucf54\ub97c \ubc1b\uc744 \uc218 \uc788\ub294\uc9c0 \uc5ec\ubd80\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc2e0\ud638\ub97c \ubcc4\ub3c4\ub85c \uc9c0\uc815\ud558\uc138\uc694. \uae30\uacc4\uc801\uc73c\ub85c \ud638\ud658\ub418\ub294 \uc561\uc138\uc11c\ub9ac\ub97c \uad6c\ub9e4\ud558\ub294 \uac83\uc740 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \ud45c\uc2dc\ub97c \uc704\ud55c \uccab \ubc88\uc9f8 \ub2e8\uacc4\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc694\uc57d: <a href=\"https:\/\/w9-group.com\/ko\/product\/mccb-accessories-aauxiliary-contact-single-aauxiliary-with-wiring-or-termial\/\">MCCB \ubcf4\uc870 \uc811\uc810<\/a> \uc774\ub294 \uc800\uc804\ub825\uc758 \uae30\uacc4\uc801 \uc5f0\ub3d9 \uc2a4\uc704\uce58\ub85c \ube0c\ub808\uc774\ucee4\uc758 ON\/OFF \uc704\uce58\ub97c \uc6d0\uaca9\uc73c\ub85c \ubcf4\uace0\ud558\uba70, \uc561\uc138\uc11c\ub9ac \uc720\ud615\uc5d0 \ub530\ub77c \ud2b8\ub9bd \uc774\ubca4\ud2b8\ub3c4 \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4. \ud504\ub808\uc784, \uc811\uc810 \ub85c\uc9c1, \uc804\uc555, \uc804\ub958, \ud130\ubbf8\ub110 \ud1a0\ud06c, \ubd80\ud558 \ubc94\uc8fc \ubc0f \ud574\ub2f9 \ud45c\uc900\uc744 \ud655\uc778\ud558\uc5ec \uc81c\uc5b4 \uad6c\uc131 \uc694\uc18c\ub85c \uc9c0\uc815\ud558\uc2ed\uc2dc\uc624. \uc77c\ubc18\uc801\uc778 \uce74\ud0c8\ub85c\uadf8 \uac12\uc740 AC 230\/400 V\uc5d0\uc11c 0.3 A, DC 24\/110\/220 V\uc5d0\uc11c 0.15 A\uc785\ub2c8\ub2e4. \ud574\ub2f9 \uac12\uc744 PLC, \ub9b4\ub808\uc774 \ub610\ub294 \uc54c\ub78c \uc7a5\uce58 \uc785\ub825\uc5d0 \ub9de\ucd94\uace0 FAT \ubc0f SAT\uc5d0\uc11c \uc9c4\uc2e4 \ud14c\uc774\ube14\uc744 \uac80\uc99d\ud569\ub2c8\ub2e4.<\/p>\n<h2>MCCB Auxiliary Contact Functions<\/h2>\n<p>MCCB \ubcf4\uc870 \uc811\uc810\uc740 \ucc28\ub2e8\uae30 \uba54\ucee4\ub2c8\uc998\uc744 \ub530\ub974\uace0 \ucc28\ub2e8\uae30 \ud578\ub4e4 \ub610\ub294 \uc791\ub3d9 \uba54\ucee4\ub2c8\uc998\uc774 \uc6c0\uc9c1\uc77c \ub54c \uc0c1\ud0dc\uac00 \ubcc0\uacbd\ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc77c\ubc18\uc801\uc73c\ub85c \uc5f4\ub824 \uc788\ub294(NO) \ub610\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub2eb\ud600 \uc788\ub294(NC) \ud68c\ub85c\ub294 \ube4c\ub529 \uad00\ub9ac \uc2dc\uc2a4\ud15c\uc5d0 \ud53c\ub354\uac00 \ud3d0\uc1c4\ub418\uc5c8\uac70\ub098 \uace0\ub9bd\ub418\uc5c8\uac70\ub098 \uc11c\ube44\uc2a4\uc5d0 \uc774\uc6a9 \uac00\ub2a5\ud558\ub2e4\uace0 \uc54c\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6d0\uaca9 \uc81c\uc5b4 \ud328\ub110\uc5d0\uc11c \uc774\ub7ec\ud55c \ub2e8\uc21c\ud55c \uc0c1\ud0dc \ud53c\ub4dc\ubc31 \uae30\ub2a5\uc740 \uba85\ub839 \uc2dc\ud000\uc2a4\uac00 \ube0c\ub808\uc774\ucee4\uac00 \uc6c0\uc9c1\uc600\ub2e4\uace0 \uc0dd\uac01\ud558\ub3c4\ub85d \ubc29\uc9c0\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ube0c\ub808\uc774\ucee4\ub294 \uc2e4\uc81c\ub85c \uc6c0\uc9c1\uc774\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uac00\ub054 \ud63c\ub3d9\ub418\ub294 \uc138 \uac00\uc9c0 \uc2e0\ud638\ub97c \uad6c\ubd84\ud558\ub294 \uac83\uc774 \uc720\uc6a9\ud569\ub2c8\ub2e4:<\/p>\n<ul>\n<li>Position (AX): \uc758\ub3c4\uc801\uc73c\ub85c \uc218\ub3d9\uc73c\ub85c \uc5f4\ub9b0 \uacbd\uc6b0\ub97c \ud3ec\ud568\ud558\uc5ec ON\/OFF \uc0c1\ud0dc\ub97c \ubcf4\uace0\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc54c\ub78c(AL): \uacfc\ubd80\ud558, \ub2e8\ub77d, \uc800\uc804\uc555, \uc794\ub958 \uc804\ub958 \uc791\ub3d9 \ub610\ub294 \uc218\ub3d9 \ud2b8\ub9ac\ud504 \ub4f1 \ubcf4\ud638 \ub610\ub294 \uc790\uc720 \ud2b8\ub9bd \uc0c1\ud0dc\ub97c \uac10\uc9c0\ud569\ub2c8\ub2e4. \uc774 \uc0c1\ud0dc\uc5d0\uc11c\ub294 \uba54\ucee4\ub2c8\uc998\uc774 \uc791\ub3d9\uc744 \uba48\ucda5\ub2c8\ub2e4.<\/li>\n<li>\uc54c\ub78c \ud50c\ub7ec\uc2a4 \ubcf4\uc870 \uae30\ub2a5: \uc0c1\ud0dc \ubc0f \uc6b4\ud589 \uc815\ubcf4 \ud45c\uc2dc \uae30\ub2a5\uc744 \ud558\ub098\uc758 \uc561\uc138\uc11c\ub9ac \uc5b4\uc148\ube14\ub9ac\uc5d0 \ud1b5\ud569\ud569\ub2c8\ub2e4. \ud574\ub2f9 \uc5b4\uc148\ube14\ub9ac\uc758 \uc811\ucd09 \ubc29\uc2dd\uacfc \ubc30\uc120\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/li>\n<\/ul>\n<figure class=\"article-image\" data-image-slot=\"hero\">\n<img decoding=\"async\" alt=\"W9 MCCB \ubcf4\uc870 \uc811\uc810 \ubd80\uc18d\ud488\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/mccb-accessories-aauxiliary-contact-single-aauxiliary-with-wiring-or-ter-gallery-01.webp\" style=\"display:block;width:50%;max-width:50%;height:auto;margin:0 auto\"\/><figcaption>W9 MCCB \ubcf4\uc870 \uc811\uc810 \uc561\uc138\uc11c\ub9ac.<\/figcaption><\/figure>\n<h2>Auxiliary Contact Selection Requirements<\/h2>\n<p>Selection starts with the MCCB frame, not with the <strong>\uc81c\uc5b4 \uc804\uc555<\/strong> alone. In one common frame-coded system, AX-125 is intended for 125\/160-frame breakers, AX-250 for 250-frame breakers, and AX-400 for 400-frame breakers; the alarm family uses corresponding AL-125, AL-250, and AL-400 codes. A physically similar accessory from another frame can fail to latch, obstruct the mechanism, or leave the indication permanently false.<\/p>\n<p>\ub2e4\uc74c\uc73c\ub85c \uc81c\uc5b4 \uc124\uacc4\uc790\uac00 \uc0ac\uc6a9\ud558\ub294 \ub3d9\uc77c\ud55c \ub2e8\uc704\ub85c \uae30\uc7ac\ub41c \uc804\uae30\uc801 \uc131\ub2a5 \uaddc\uaca9\uc744 \uc77d\uc5b4\ubcf4\uc2ed\uc2dc\uc624. \ubaa9\ub85d\uc5d0 \uc788\ub294 AX \ubc0f AL \ud2b9\uc131\uc740 Ue AC 230 V\/400 V \ubc0f DC 110 V\/220 V\/24 V\uc774\uba70, AC 230\/400 V\uc5d0\uc11c\ub294 In 0.3 A, DC 110\/220\/24 V\uc5d0\uc11c\ub294 0.15 A\uc785\ub2c8\ub2e4. \uc774\ub294 \uc870\uc6a9\ud55c \uc804\ub958\uc785\ub2c8\ub2e4. PLC \uc785\ub825 \ub610\ub294 \uc911\uacc4 \ub9b4\ub808\uc774\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \uc801\ud569\ud569\ub2c8\ub2e4. \ubaa8\ud130 \ucf54\uc77c\uc744 \uc9c1\uc811 \uc804\ud658\ud558\ub294 \uacbd\uc6b0 \uc811\uc810\uc758 \uc0ac\uc6a9 \ubc94\uc8fc\ub97c \ucd08\uacfc\ud558\uc5ec \uc218\uba85\uc774 \ub2e8\ucd95\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc81c\uac70 \ubc0f \uacb0\ud569\uc744 \uc644\ub8cc\ud558\uae30 \uc804\uc5d0 \ud68c\ub85c\uac00 \uc800\ud56d\uc131\uc778\uc9c0, \uc720\ub3c4\uc131\uc778\uc9c0, \uc804\uc790\uc131\uc778\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n<p>Contact notation must be read with the actual diagram. A changeover contact normally has a common terminal and alternative normally open and normally closed paths; catalogue shorthand such as 1 NO + 1 NC does not by itself establish whether the paths share a common terminal or are independent. Define the reference state and verify the terminal truth table for ON, OFF and tripped states. Neither an auxiliary indication nor an OFF command proves absence of voltage for maintenance.<\/p>\n<h3>Signal Acceptance Testing<\/h3>\n<p>\uc720\uc6a9\ud55c \uc218\ub77d \uc2dc\ud2b8\uc5d0\uc11c\ub294 \ubb3c\ub9ac\uc801 \ucc28\ub2e8 \uc0c1\ud0dc, \ub2e8\uc790 \uc5f0\uc18d\uc131 \ubc0f PLC \ub514\uc2a4\ud50c\ub808\uc774\ub41c \uc0c1\ud0dc\ub97c \ubcc4\ub3c4\uc758 \uc5f4\uc5d0 \uae30\ub85d\ud569\ub2c8\ub2e4. \uc77c\ubc18 \uc218\ub3d9 \uac1c\ud3d0, \uc2b9\uc778\ub41c \ud2b8\ub9bd \uc2dc\ubbac\ub808\uc774\uc158, \ub9ac\uc14b, \uc81c\uc5b4\ub825 \uc0c1\uc2e4 \ub4f1\uc758 \ub0b4\uc6a9\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. AX \ubc0f AL \uc57d\uc5b4\ub294 \uc81c\uc870\uc0ac\ubcc4\uc774\uba70, \ud2b8\ub9bd \uacbd\uace0\uac00 \ubaa8\ub4e0 \ubc29\ucd9c \uc774\ubca4\ud2b8\uc5d0 \uc751\ub2f5\ud558\ub294\uc9c0 \ub610\ub294 \uc120\ud0dd\ub41c \uacb0\ud568\uc5d0\ub9cc \uc751\ub2f5\ud558\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/w9-group.com\/ko\/product\/%ec%95%8c%eb%9e%8c-%ec%a0%91%ec%a0%90\/\">W9 \uc54c\ub78c \ubaa9\ub85d<\/a> \uc774\ubca4\ud2b8 \ubaa9\ub85d\uc5d0 \uc218\ub3d9 \ubb34\ub8cc \uc5ec\ud589\ub3c4 \ud3ec\ud568\ub418\uc5b4 \uc788\uc73c\ubbc0\ub85c \uc77c\ubc18\uc801\uc778 \uc624\ub958\uc5d0 \ub300\ud55c \uc124\uba85\uc740 \uc2e4\uc81c \uc0ac\uc2e4 \ud14c\uc774\ube14\uc744 \ub300\uc2e0 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>Auxiliary Contact Rating Interpretation<\/h2>\n<p>Do not transfer the ratings of a compact DIN-rail accessory to an MCCB accessory. Minimum switching load, voltage, utilization category, conductor range and <strong>terminal torque<\/strong> must come from the exact accessory documentation. A physically similar switch can have a different current range, temperature limit or electrical endurance. Check the manufacturer compatibility list before specifying either format.<\/p>\n<p>Electrical endurance and mechanical endurance describe different duties. Estimate the expected switching frequency and load type for the <strong>control circuit<\/strong>, then compare them with the exact accessory rating. An endurance figure is not a calendar-life guarantee. Repeated switching of an inductive load requires the appropriate utilization rating and any suppression specified by the manufacturer.<\/p>\n<p>For a PLC input, maximum contact current is not the only acceptance criterion. Request the minimum reliable switching load, input wetting-current requirement and the control-circuit voltage. If the manufacturer does not declare reliable low-level operation, obtain a suitable interface rather than assuming that a high-current contact will work consistently at a very small signal current.<\/p>\n<figure class=\"article-image\" data-image-slot=\"body-1\">\n<img decoding=\"async\" alt=\"W9 MCCB \uc54c\ub78c \uc811\ucd09 \ubd80\uc18d\ud488\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/alarm-contact-gallery-01.webp\" style=\"display:block;width:50%;max-width:50%;height:auto;margin:0 auto\"\/><figcaption>W9 MCCB \uc54c\ub78c \uc811\ucd09 \ubd80\uc18d\ud488.<\/figcaption><\/figure>\n<h2>Position Feedback vs Trip Alarm<\/h2>\n<table>\n<thead>\n<tr>\n<th>\uc2e0\ud638<\/th>\n<th>\uc6b4\uc601\uc790\uac00 \ubcf4\ub294 \uac83<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc81c\uc5b4 \uc0ac\uc6a9\ubc95<\/th>\n<th>\uc2dc\uc6b4\uc804 \uc810\uac80<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ubcf4\uc870 (AX)<\/td>\n<td>\ube0c\ub808\uc774\ucee4 \ucf1c\uae30\/\ub044\uae30 \uc704\uce58<\/td>\n<td>\uc5f0\uacb0 \uc7a0\uae08 \ud5c8\uc6a9, \ubaa8\ubc29 \ud328\ub110, BMS \uc0c1\ud0dc<\/td>\n<td>\ube0c\ub808\uc774\ucee4\ub97c \uc218\ub3d9\uc73c\ub85c \ucf1c\uace0 \ub055\ub2c8\ub2e4. \ub450 \uc0c1\ud0dc \ubaa8\ub450 \ud655\uc778\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uacbd\ubcf4(AL)<\/td>\n<td>\ubcf4\ud638 \ub610\ub294 \uc790\uc720 \uc5ec\ud589 \uc774\ubca4\ud2b8<\/td>\n<td>\uc5ec\ud589 \uc54c\ub9bc, \uc774\ubca4\ud2b8 \ub85c\uadf8, \uc6d0\uaca9 \uc54c\ub78c<\/td>\n<td>\uc2b9\uc778\ub41c \uc2dc\ud5d8 \uc808\ucc28\ub97c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624; \uc704\uce58\ub9cc\uc73c\ub85c \uc5ec\ud589\uc744 \ucd94\uc815\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n<tr>\n<td>\uc54c\ub78c + \ubcf4\uc870 \uae30\ub2a5<\/td>\n<td>\uac1c\ubcc4 \uc0c1\ud0dc \ubc0f \uc5ec\ud589 \ucc44\ub110<\/td>\n<td>\uc911\uc694\ud55c \ud53c\ub354 \uc2dc\ud000\uc2f1 \ubc0f \uadfc\ubcf8 \uc6d0\uc778 \ubd84\uc11d<\/td>\n<td>\uc815\uc0c1 \uac1c\ubc29 \ubc0f \uc2dc\ubbac\ub808\uc774\uc158\ub41c \ubcf4\ud638 \ud2b8\ub9ac\ud504\ub97c \ubcc4\ub3c4\ub85c \ud14c\uc2a4\ud2b8\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ub370\uc774\ud130 \uc13c\ud130\uc5d0\uc11c\ub294 \uc774 \ucc28\ubcc4\ub85c \uc77c\ubc18\uc801\uc778 OFF \uba85\ub839\ucc98\ub7fc \ubc29\ud574\uc74c \uacbd\ubcf4\uac00 \uc228\uaca8\uc9c0\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc0b0\uc5c5\uc6a9 \uae30\uacc4\uc5d0\uc11c\ub294 \uc548\uc804\ud55c \uc7ac\uc2dc\uc791\uc744 \ud5c8\uc6a9\ud558\ub294 \uae30\ub2a5\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc81c\uc5b4\uae30\ub294 \ubcf4\ud638 \uae30\ub2a5\uc774 \uc791\ub3d9\ud55c \ud6c4 \uc7ac\uc2dc\uc791\uc744 \ucc28\ub2e8\ud558\ub294 \ub3d9\uc2dc\uc5d0 \u201c\ube0c\ub808\uc774\ucee4 \ub2eb\uae30\u201d\ub97c \uc694\uad6c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. EPC \ud504\ub85c\uc81d\ud2b8\uc758 \uacbd\uc6b0, \ub2e8\uc790\ud310\uc5d0 \ub450 \uac1c\uc758 \ud68c\ub85c\ub97c \ud45c\uc2dc\ud558\uba74 \ub3c4\uba74\uc774 \uac74\uc124 \ub2e8\uacc4\uc5d0\uc11c \uc6b4\uc601 \ub2e8\uacc4\ub85c \uc774\uad00\ub420 \ub54c \ubb38\uc81c \ud574\uacb0 \uc2dc\uac04\uc744 \ub2e8\ucd95\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>Monitoring Signal Limitations<\/h3>\n<p>Position feedback can support normal sequencing, but an ordinary auxiliary contact is not automatically a safety-rated interlock or proof of electrical isolation. If the application requires a safety function, the responsible designer must specify the required architecture and matching component evidence. For routine status monitoring, separately label a lost control supply or broken wire as an unknown state where the control design permits it, rather than mapping every missing signal to a healthy feeder.<\/p>\n<h2>\uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \ud658\uacbd \ube44\uad50<\/h2>\n<table>\n<thead>\n<tr>\n<th>\uc751\uc6a9 \ubd84\uc57c\uc758 \ud06c\uae30<\/th>\n<th>\uc8fc\uc694 \uc704\ud5d8<\/th>\n<th>\uae30\ub2a5 \uac15\uc870<\/th>\n<th>\uc2e4\uc6a9\uc801\uc778 \ud589\ub3d9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uc0c1\uc5c5\uc801 \ubc30\ud3ec \ubcf4\ub4dc<\/td>\n<td>\uc2dc\uc124 \uc9c1\uc6d0\uc5d0\uac8c \uc798\ubabb\ub41c \uc0c1\ud0dc\uac00 \ud45c\uc2dc\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td>\n<td>AX \ub85c\uc9c1, 24 VDC \uc785\ub825 \ud638\ud658\uc131, \uc120\uba85\ud55c \ub77c\ubca8<\/td>\n<td>\ud328\ub110 \uc77c\uc815\uc758 NO\/NC \uc9c4\uc2e4\ud45c<\/td>\n<\/tr>\n<tr>\n<td>\uc0b0\uc5c5\uc6a9 \ubaa8\ud130 \ud53c\ub354<\/td>\n<td>\uc720\ub3c4\uc2dd \uc2a4\uc704\uce6d \ubc0f \uc811\ucd09 \ub9c8\ubaa8<\/td>\n<td>\uc774\uc6a9 \ubc94\uc8fc, \uc5b5\uc81c, \ubd80\ud558 \uc8fc\uae30<\/td>\n<td>\ucf54\uc77c\uc774\ub098 \uc778\ub7ec\uc26c\uac00 \ucd08\uacfc\ub420 \uacbd\uc6b0 \uc778\ud130\uc149\ud305 \ub9b4\ub808\uc774\ub97c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n<tr>\n<td>\ub370\uc774\ud130 \uc13c\ud130 A\/B \uc804\uc6d0<\/td>\n<td>\uc5ec\ud589 \uc911\uc758 \ud5c8\uc704 \u201c\uc0ac\uc6a9 \uac00\ub2a5\ud55c\u201d \uc2e0\ud638<\/td>\n<td>\ubcc4\ub3c4\uc758 AX \ubc0f AL \ucc44\ub110, \ud14c\uc2a4\ud2b8\ub41c \uc778\ud130\ub85d<\/td>\n<td>\uc218\ub3d9 \uc624\ud504 \ubc0f \ubcf4\ud638 \ud2b8\ub9ac\ud504\ub97c \uc704\ud55c FAT\/SAT \uc2dc\ub098\ub9ac\uc624 \uc2e4\ud589<\/td>\n<\/tr>\n<tr>\n<td>\ucf64\ud329\ud2b8\ud55c DIN \ub808\uc77c \uc5b4\uc148\ube14\ub9ac<\/td>\n<td>\uc5f4, \ud1a0\ud06c \ub610\ub294 \uacf5\uac04 \uc81c\uc57d<\/td>\n<td>\uc8fc\ubcc0 \ubc94\uc704, \ud3ed 9mm, Ui\/Uimp, \ud1a0\ud06c<\/td>\n<td>\ub370\uc774\ud130 \uc2dc\ud2b8\uc5d0 \ubc30\uc120 \uacf5\uac04\uacfc \ud1a0\ud06c \ub2e8\uc790\ub97c \ubbf8\ub9ac \uae30\uc7ac\ud558\uc138\uc694.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure class=\"article-image\" data-image-slot=\"body-2\">\n<img decoding=\"async\" alt=\"W9 JCSD \ucef4\ud329\ud2b8 \uc54c\ub78c \ubcf4\uc870 \uc561\uc138\uc11c\ub9ac\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/jcsd-alarm-auxiliary-contact-gallery-01.webp\" style=\"display:block;width:50%;max-width:50%;height:auto;margin:0 auto\"\/><figcaption>W9 JCSD \ucef4\ud329\ud2b8 \uc54c\ub78c \ubcf4\uc870 \uc561\uc138\uc11c\ub9ac.<\/figcaption><\/figure>\n<h2>Auxiliary Contact Compliance Requirements<\/h2>\n<p>IEC 60947-5-1:2024\ub294 \uc804\uae30 \uae30\uacc4 \uc81c\uc5b4 \ud68c\ub85c \uc7a5\uce58 \ubc0f \uc2a4\uc704\uce6d \uc694\uc18c\ub4e4\uc744 \ub2e4\ub8f9\ub2c8\ub2e4. IEC 60947-2:2024\ub294 \ucc28\ub2e8\uae30 \uc81c\ud488\uc744 \ub2e4\ub8f9\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacf5\uc6a9 \ubc94\uc704 \uc124\uba85\uc740 \uc561\uc138\uc11c\ub9ac\uc640 \ud2b9\uc815 \ud504\ub808\uc784 \uac04\uc758 \ud638\ud658\uc131\uc744 \uaddc\uc815\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uad6c\uc131\ubcc4 \ubb38\uc11c \uc694\uccad: \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \uc694\uad6c\ud558\ub294 \ucc28\ub2e8\uae30 \ubc0f \uc561\uc138\uc11c\ub9ac \uc99d\uac70\uc5d0 \ub300\ud55c \ubcf4\uc644 \ubcf4\ud638 \uc7a5\uce58 \ud45c\uc900\uc744 \ub300\uccb4\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n<p>\uad6c\ub9e4\ud558\ub294 \ubaa8\ub378 \ubc0f \uad6c\uc131\uc5d0 \ub300\ud55c \uc815\ud655\ud55c \uc120\uc5b8\uc11c, \uc2dc\ud5d8 \ubcf4\uace0\uc11c \ub610\ub294 \uc778\uc99d \ubc94\uc704\uc5d0 \ub300\ud574 \ubb38\uc758\ud558\uc2ed\uc2dc\uc624. \uce74\ud0c8\ub85c\uadf8 \ud398\uc774\uc9c0\uc5d0 \uae30\uc7ac\ub41c \ud45c\uc900 \uaddc\uaca9\uc740 \uc790\uccb4\ub85c\ub294 \uc778\uc99d\uc744 \uc758\ubbf8\ud558\uc9c0 \uc54a\uc73c\uba70, \ud55c \uc2dc\uc7a5\uc5d0\uc11c \uaddc\uaca9\uc5d0 \ubd80\ud569\ud558\ub294 \uad6c\uc131 \uc694\uc18c\ub294 \ub2e4\ub978 \uc2dc\uc7a5\uc5d0\uc11c\ub294 \uc5ec\uc804\ud788 \ud328\ud0a4\uc9d5, \ubc30\uc120, \uac04\uaca9 \ub610\ub294 \uad6d\uac00 \uaddc\uc815 \uc900\uc218 \uc5ec\ubd80 \uac80\uc0ac\ub97c \ud544\uc694\ub85c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc9c0\uc6d0\ub418\uc9c0 \uc54a\ub294 \u201c\uc778\uc99d\ub41c\u201d \uc5b8\uc5b4\ub294 \uc81c\ucd9c \uc2dc \uac70\ubd80, \uc7ac\uc2dc\ud5d8 \ube44\uc6a9, \uc120\uc801 \ubcf4\ub958 \ub610\ub294 \ubcf4\uc99d \ubd84\uc7c1\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>Auxiliary Contact Procurement Checklist<\/h2>\n<ol>\n<li>\uc778\ud130\ud398\uc774\uc2a4 \ub3d9\uacb0: \ub179\ud654 \ud504\ub808\uc784 \ucf54\ub4dc, \uc811\ucd09 \ubc30\uc5f4, Ue, In, \ub3c4\uccb4 \ud06c\uae30 \ubc0f \ub2e8\uc790 \ud1a0\ud06c\ub97c \uc2b9\uc778\ub41c \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0 \uae30\ub85d\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc2e0\ud638 \uc544\ud0a4\ud14d\ucc98\ub97c \uc77c\uce58\uc2dc\ud0a4\uae30: \uc704\uce58\ub97c \uc81c\uc5b4\ud558\ub294 AX\ub97c \uc0ac\uc6a9\ud558\uace0 \ud2b8\ub9bd\uc744 \uc81c\uc5b4\ud558\ub294 AL\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uac10\uc751\uc801 \ub610\ub294 \uace0\uc804\ub958 \ubd80\ud558\ub97c \uc81c\uc5b4\ud558\ub294 \uc778\ud130\uc2a4\ud551\ub9c1 \ub9b4\ub808\uc774\ub97c \uc0ac\uc6a9\ud558\uc138\uc694.<\/li>\n<li>\ud658\uacbd \ubc0f \ub0b4\uad6c\uc131 \ud655\uc778: \uc120\uc5b8\ub41c \uc561\uc138\uc11c\ub9ac \ud55c\uacc4\ub97c \uc778\ud074\ub85c\uc800 \uc870\uac74 \ubc0f \uc804\ud658 \ubd80\ud558\uc640 \ube44\uad50\ud558\uc2ed\uc2dc\uc624. \ud574\ub2f9 \ubaa8\ub378 \ubc0f \uc81c\uc5b4 \ubd80\ud558\uc5d0 \ub300\ud55c \ub0b4\uad6c\uc131 \uc218\uce58\ub97c \uc0ac\uc6a9\ud558\uace0, \uc774\uc5d0 \ub300\ud55c \uac80\uc0ac \uacc4\ud68d\uc744 \ubb38\uc11c\ud654\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\uae30\uc900 \ud655\uc778 \uc99d\uac70: \uaddc\uc815 \uc900\uc218 \uc99d\uba85\uc744 \uc778\uc1c4\ud558\uae30 \uc804\uc5d0 \ubaa8\ub378 \uc218\uc900\uc758 \ubb38\uc11c\ub97c \uc694\uccad\ud558\uace0 \ub300\uc0c1 \uc2dc\uc7a5 \ucf54\ub4dc\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n<li>\uc2dc\ud5d8\uc744 \uc9c1\uc811 \ud655\uc778\ud558\uc138\uc694: FAT\/SAT \uae30\ub85d\uc5d0 \uc218\ub3d9 \uac1c\ud3d0, \ubcf4\ud638 \ud2b8\ub9ac\uac70 \uc2dc\ubbac\ub808\uc774\uc158, \uc804\uc6d0 \uc190\uc2e4 \ubc0f PLC \uacbd\uace0 \uc7ac\uc124\uc815\uc744 \ud3ec\ud568\ud558\uc138\uc694.<\/li>\n<\/ol>\n<p>\ubaa8\ub378 \uc218\uc900\uc758 \uc18c\uc2f1\uc5d0 \ub300\ud55c \ub17c\uc758\ub97c \uc704\ud574 W9\ub294 MCCB \ubcf4\uc870 \uc811\uc810 \uc81c\ud488\uad70\uacfc <a href=\"https:\/\/w9-group.com\/ko\/product\/%ec%95%8c%eb%9e%8c-%ec%a0%91%ec%a0%90\/\">\uacbd\ubcf4 \uc811\ucd09 \uac00\uc871<\/a>. \ubd80\uc18d\ud488 \ud638\ud658\uc131 \ub3c4\uba74, \ub2e8\uc790 \uba85\uce6d \ubc0f \uc120\uc5b8\ub41c \uc81c\uc5b4 \ub4f1\uae09\uc744 \ud568\uaed8 \uac80\ud1a0\ud558\uc2ed\uc2dc\uc624. \uc81c\uc870\uc5c5\uccb4\uac00 \uba85\uc2dc\uc801\uc73c\ub85c \uc774\ub7ec\ud55c \uc870\ud569\uc744 \ubb38\uc11c\ud654\ud558\uc9c0 \uc54a\ub294 \ud55c, DIN \ub808\uc77c\ud615 \uc18c\ud615 \ubd80\uc18d\ud488\uc740 MCCB\uc758 \ub300\uccb4\ud488\uc73c\ub85c \uc81c\uc2dc\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n<section id=\"faq\">\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>MCCB \ubcf4\uc870 \uc811\uc810\uacfc \uc54c\ub78c \uc811\uc810\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h3>\n<p>MCCB\uc758 \ubcf4\uc870 \uc811\uc810\uc740 \ucc28\ub2e8\uae30\uc758 \uc791\ub3d9 \uc704\uce58\ub97c \ubcf4\uace0\ud558\uba70, \uacbd\ubcf4 \uc811\uc810\uc740 \ubcf4\ud638 \ub610\ub294 \ud504\ub9ac\ud2b8\ub9bd(free-trip) \uc0c1\ud669\uc744 \ubcf4\uace0\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc77c\ubc18\uc801\uc778 \uc218\ub3d9 \uc624\ud504 \ub3d9\uc791\uc740 \ub3d9\uc77c\ud55c AL \uc2e0\ud638\ub97c \uc0dd\uc131\ud558\uc9c0 \uc54a\uace0\ub3c4 AX\ub97c \ubcc0\uacbd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud574\ub2f9 \uc811\uc810\uc744 \uc640\uc774\uc5b4\ub85c \uc5f0\uacb0\ud558\uace0 \ud504\ub85c\uadf8\ub7a8\ud558\uc5ec \uc11c\ub85c \ub2e4\ub978 \uc758\ubbf8\ub85c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h3>\ubcf4\uc870 \uc811\ucd09\uae30\ub85c 230V\uc758 \ubd80\ud558\ub97c \uc804\ud658\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n<p>\ub9cc\uc57d \ud574\ub2f9 \uc811\ucd09\uae30\uc758 Ue \ubc0f In \ub4f1\uae09, \uc0ac\uc6a9\ub960 \ubc94\uc8fc \ubc0f \ubd80\ud558 \uc720\ud615\uc774 \ud5c8\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc5b8\uae09\ub41c AX\/AL \ub370\uc774\ud130 \ubaa9\ub85d\uc740 AC 230\/400 V\uc5d0\uc11c 0.3 A\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ub354 \ud070 \uc6a9\ub7c9\uc774\ub098 \uc720\ub3c4 \ubd80\ud558\uc758 \uacbd\uc6b0 \uc778\ud130\ud398\uc774\uc2a4 \ub9b4\ub808\uc774\uc640 \uc801\uc808\ud55c \uac10\uc1c4 \uc7a5\uce58\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>\uc62c\ubc14\ub978 MCCB \ud504\ub808\uc784 \ucf54\ub4dc\ub97c \uc5b4\ub5bb\uac8c \uc120\ud0dd\ud558\ub098\uc694?<\/h3>\n<p>\uae30\uae30 \ucf54\ub4dc\uc640 \ucc28\ub2e8\uae30 \ud504\ub808\uc784\uacfc \uc77c\uce58\uc2dc\ucf1c \uc8fc\uc138\uc694. AX-125\ub294 125\/160 \ud504\ub808\uc784\uc744 \ucee4\ubc84\ud558\uba70, AX-250\uc740 250, AX-400\uc740 400\uc744 \ucee4\ubc84\ud569\ub2c8\ub2e4. \uacbd\ubcf4 \ucf54\ub4dc\ub294 Al-125\/250\/400\uc744 \ub530\ub985\ub2c8\ub2e4. \uc8fc\ubb38\ud558\uae30 \uc804\uc5d0 \uc81c\uc870\uc0ac\uc758 \ud638\ud658\uc131 \ub3c4\uba74\uc744 \ud655\uc778\ud558\uc138\uc694.<\/p>\n<h3>IEC 60947 \uaddc\uaca9 \ucc38\uc870\ub294 \uc81c\ud488\uc774 \uc778\uc99d\uc744 \ubc1b\uc558\ub2e4\ub294 \uc99d\uac70\uc778\uac00\uc694?<\/h3>\n<p>\uc544\ub2d9\ub2c8\ub2e4. \ud45c\uc900\uc740 \uac74\uc124 \ubc0f \uc2dc\ud5d8 \uc694\uac74\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. \uc778\uc99d\uc740 \ud2b9\uc815 \ubaa8\ub378, \uad6c\uc131 \ubc0f \uacf5\uc778 \ud3c9\uac00\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ubaa8\ub378 \uc218\uc900\uc758 \uc99d\uac70\ub97c \uc694\uccad\ud558\uace0 \uadc0\ud558\uc758 \ub300\uc0c1 \uc2dc\uc7a5\uc758 \ubc94\uc704\uc5d0 \ub300\ud574 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h3>\uc2dc\uc6b4\uc804 \uc911\uc5d0 \uc5b4\ub5a4 \uac83\uc744 \ud14c\uc2a4\ud2b8\ud574\uc57c \ud558\ub098\uc694?<\/h3>\n<p>ON, OFF \ubc0f \ubcf4\ud638 \ud2b8\ub9ac\ud2b8 \uc0c1\ud0dc\uc5d0 \ub300\ud55c \uc5f0\uc18d\uc131 \ubc0f PLC \ud45c\uc2dc \ud655\uc778 \ud6c4, \uacbd\ubcf4 \uc7ac\uc124\uc815 \ubc0f \uc778\ud130\ub85d \ub3d9\uc791\uc744 \ud655\uc778\ud569\ub2c8\ub2e4. \ud130\ubbf8\ub110 \ud1a0\ud06c\uc640 \ucd5c\uc885 NO\/NC \uc9c4\uc2e4\ud45c\ub97c \ube4c\ub529 \uc0c1\ud0dc \ud328\ud0a4\uc9c0\uc5d0 \uae30\ub85d\ud569\ub2c8\ub2e4.<\/p>\n<\/section>\n<h2>\ucc38\uace0\ubb38\ud5cc<\/h2>\n<ul>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/66277\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60947-2:2024 \u2014 \ud68c\ub85c \ucc28\ub2e8\uae30 \uc81c\ud488 \ubc94\uc704<\/a>.<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/32338\" rel=\"nofollow noopener\" target=\"_blank\">IEC 61439-1:2020 \u2014 \uc800\uc804\uc555 \uc5b4\uc148\ube14\ub9ac \uc77c\ubc18 \uaddc\uc815<\/a>.<\/li>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/nfpa-70-standard-development\/70\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70 \u2014 \ubbf8\uad6d \uc124\uce58 \uaddc\uaca9 \uac1c\ubc1c \ubc0f \ubc94\uc704<\/a>.<\/li>\n<\/ul>\n<p>The durable lesson is simple: a tiny contact can carry a large operational consequence. Specify the signal, frame, rating, and evidence together, then prove the truth table before energizing the system. Review the full W9 protection-products range, consult technical support for drawings, or contact W9 Group when your MCCB monitoring scheme reaches the approval stage.<\/p>\n<\/div>\n<p>\uc81c\uc548\ub41c \uad6c\uc131\uc744 \uac80\ud1a0\ud558\uae30 \uc704\ud574, <a href=\"https:\/\/w9-group.com\/ko\/contact-us\/\">W9 \uadf8\ub8f9\uc5d0 \ubb38\uc758\ud558\uae30<\/a> \ub85c\ub4dc \uc2a4\ucf00\uc904\uc5d0 \ub530\ub77c \uc0ac\uc6a9 \uac00\ub2a5 <strong>\uacfc\ubd80\ud558 \uc804\ub958<\/strong> \uadf8\ub9ac\uace0 \ubaa9\uc801\uc9c0 \uc2dc\uc7a5\uc758 \uc694\uad6c \uc0ac\ud56d\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>Learn what MCCB auxiliary contacts report, how AX and AL signals differ, which ratings and frame codes matter, and how IEC 60947 standards guide selection.<br \/>\nPrimary keyword: MCCB auxiliary contacts<br \/>\nSupporting keywords: auxiliary contact function, MCCB alarm contact, IEC 60947-5-1, MCCB accessories<br \/>\nArticle type: Product technical depth \/ compliance guide<br \/>\nWord-count target: 1,500\u20131,800 words<br \/>\nImage slots: 3 (distributed in article)<\/p>","protected":false},"author":1,"featured_media":3750,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"acf":[],"_links":{"self":[{"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/posts\/3500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/comments?post=3500"}],"version-history":[{"count":5,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/posts\/3500\/revisions"}],"predecessor-version":[{"id":4735,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/posts\/3500\/revisions\/4735"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/media\/3750"}],"wp:attachment":[{"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/media?parent=3500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/categories?post=3500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w9-group.com\/ko\/wp-json\/wp\/v2\/tags?post=3500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}